CN107171366B - Combustion turbine power control system and its control method for general mood complementary system - Google Patents
Combustion turbine power control system and its control method for general mood complementary system Download PDFInfo
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- CN107171366B CN107171366B CN201710504553.4A CN201710504553A CN107171366B CN 107171366 B CN107171366 B CN 107171366B CN 201710504553 A CN201710504553 A CN 201710504553A CN 107171366 B CN107171366 B CN 107171366B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
Abstract
The invention discloses a kind of combustion turbine power control systems for general mood complementary system, including wind-powered electricity generation networking power detection module, for detecting to wind-powered electricity generation networking power；Network load detection module, for being detected to network load；Gas turbine power generation networking power detection module, is detected for the generated output to gas turbine；Analysis module for analyzing the variation of prediction network load and networking power, and issues gas turbine rotary speed control and requires；Gas turbine rotary speed control module, the gas turbine rotary speed control for being issued according to analysis module require to control gas turbine rotary speed.The present invention can improve the deficiencies in the prior art, and the adjusting for improving general mood complementary system is horizontal, improve operation of power networks ride comfort.
Description
Technical field
The present invention relates to grid power control technology field, especially a kind of gas turbine function for general mood complementary system
Rate control system and its control method.
Background technique
With the exacerbation of fossil energy crisis and problem of environmental pollution, China is accelerated for new energy power generation technology research
Paces.Wind-powered electricity generation is widely used as a kind of more mature new energy power generation technology.But wind-powered electricity generation have with
Machine and intermittence, power generation output-power fluctuation is very big, can be to the electric power system stability after grid-connected if do not controlled it
Fixed operation generates impact and influences.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of combustion turbine powers for general mood complementary system to control system
System and its control method, are able to solve the deficiencies in the prior art, and the adjusting for improving general mood complementary system is horizontal, improve power grid
Run ride comfort.
In order to solve the above technical problems, the technical solution used in the present invention is as follows.
A kind of combustion turbine power control system for general mood complementary system, including,
Wind-powered electricity generation networking power detection module, for being detected to wind-powered electricity generation networking power；
Network load detection module, for being detected to network load；
Gas turbine power generation networking power detection module, is detected for the generated output to gas turbine；
Analysis module for analyzing the variation of prediction network load and networking power, and issues gas turbine rotary speed control
It is required that；
Gas turbine rotary speed control module, the gas turbine rotary speed control for being issued according to analysis module are required to combustion gas
Turbine revolving speed is controlled.
A kind of control method of the above-mentioned combustion turbine power control system for general mood complementary system, including following step
It is rapid:
A, wind-powered electricity generation networking power data is transferred to analysis module by wind-powered electricity generation networking power detection module, and analysis module is to wind-powered electricity generation
The instantaneous value and desired value of networking power carry out analysis record；
B, network load data are transferred to analysis module, wink of the analysis module to network load by network load detection module
Duration and desired value carry out analysis record；
C, analysis module enters network data and network load data to gas turbine power generation networking power target value according to wind-powered electricity generation
It is determined；
D, analysis module determines that gas turbine rotary speed control requires, and be sent to combustion according to the real-time revolving speed of gas turbine
Gas-turbine rotational speed control module；
E, gas turbine rotary speed control module controls the revolving speed of gas turbine.
Preferably, after analysis module records the instantaneous value of wind-powered electricity generation networking power, using wind-powered electricity generation networking power in step A
Curve carries out sectional linear fitting, becomes the derivative of the linear fit result of final stage as the variation of wind-powered electricity generation networking power
Then gesture calculates the future of wind-powered electricity generation networking power using the variation tendency of the instantaneous value of wind-powered electricity generation networking power and wind-powered electricity generation networking power
Then predicted value is weighted flat using the forecasted future value of the average value of wind-powered electricity generation networking power curve and wind-powered electricity generation networking power
, final wind-powered electricity generation networking power desired value is obtained.
Preferably, in step B, after analysis module records the instantaneous value of network load, according in historical record at this time
The instantaneous value of network load average value and network load is weighted and averaged, and obtains final network load desired value.
Preferably, using wind-powered electricity generation to enter network data and network load data as input quantity in step C, being adjusted using PID
Device obtains gas turbine power generation networking power target value.
Preferably, being made first using the history mean value of wind-powered electricity generation networking power and the history mean value of network load in step C
For input quantity, the parameter of PID regulator is adjusted；Then using the wink of the instantaneous value of wind-powered electricity generation networking power and network load
Duration increases the time of integration of PID regulator at this time, obtains the first gas turbine power generation by PID regulator as input quantity
Networking power reference target value；Then the predicted value of the predicted value and network load that use wind-powered electricity generation networking power as input quantity,
The derivative time for increasing PID regulator at this time, the second gas turbine power generation networking power reference target is obtained by PID regulator
Value；Use the first gas turbine power generation networking power reference target value and the second gas turbine power generation networking power reference target value
It is weighted and averaged, obtains gas turbine power generation networking power target value.
Preferably, according to the change curve of the efficiency of generator and revolving speed, being entered using gas turbine power generation in step D
Revolving speed corresponding to net power target value and actual speed determine revolving speed adjustment amount.
Brought beneficial effect is by adopting the above technical scheme: the present invention by improving for wind-powered electricity generation networking power and
The calculating of the predicted value of network load improves the accuracy for electric network state prediction.Then by having targetedly PID
Parameter tuning improves operation of power networks ride comfort.
Detailed description of the invention
Fig. 1 is the principle of the present invention figure.
Fig. 2 is the structure chart of a specific embodiment of the invention.
In figure: 1, wind-powered electricity generation networking power detection module；2, network load detection module；3, gas turbine power generation networking power
Detection module；4, analysis module；5, gas turbine rotary speed control module.
Specific embodiment
The standardized element used in the present invention can commercially, and shaped piece is according to specification and attached drawing
Record can carry out customized, and the specific connection type of each part is all made of in the prior art mature bolt, rivet, weldering
The conventional means such as connect, paste, this will not be detailed here.
Referring to Fig.1, a kind of combustion turbine power control system for general mood complementary system, including,
Wind-powered electricity generation networking power detection module 1, for being detected to wind-powered electricity generation networking power；
Network load detection module 2, for being detected to network load；
Gas turbine power generation networking power detection module 3, is detected for the generated output to gas turbine；
Analysis module 4 for analyzing the variation of prediction network load and networking power, and issues gas turbine rotary speed control
It is required that；
Gas turbine rotary speed control module 5, the gas turbine rotary speed control for being issued according to analysis module 4 are required to combustion
Gas-turbine revolving speed is controlled.
A kind of control method of the above-mentioned combustion turbine power control system for general mood complementary system, including following step
It is rapid:
A, wind-powered electricity generation networking power data is transferred to analysis module 4 by wind-powered electricity generation networking power detection module 1, and analysis module 4 is right
The instantaneous value and desired value of wind-powered electricity generation networking power carry out analysis record；
B, network load data are transferred to analysis module 4 by network load detection module 2, and analysis module 4 is to network load
Instantaneous value and desired value carry out analysis record；
C, analysis module 4 enters network data and network load data to gas turbine power generation networking power target value according to wind-powered electricity generation
It is determined；
D, analysis module determines that gas turbine rotary speed control requires, and be sent to combustion according to the real-time revolving speed of gas turbine
Gas-turbine rotational speed control module 5；
E, gas turbine rotary speed control module 5 controls the revolving speed of gas turbine.
In step A, after analysis module 4 records the instantaneous value of wind-powered electricity generation networking power, carried out using wind-powered electricity generation networking power curve
Then sectional linear fitting makes using the derivative of the linear fit result of final stage as the variation tendency of wind-powered electricity generation networking power
The forecasted future value of wind-powered electricity generation networking power is calculated with the instantaneous value of wind-powered electricity generation networking power and the variation tendency of wind-powered electricity generation networking power, so
It is weighted and averaged, is obtained final using the forecasted future value of the average value and wind-powered electricity generation networking power of wind-powered electricity generation networking power curve afterwards
Wind-powered electricity generation networking power desired value.
In step B, after analysis module 4 records the instantaneous value of network load, according to the network load in historical record at this time
The instantaneous value of average value and network load is weighted and averaged, and obtains final network load desired value.
In step C, uses wind-powered electricity generation to enter network data and network load data as input quantity, obtain combustion using PID regulator
Gas-turbine power generation networking power target value.
In step C, the history mean value of the history mean value and network load that use wind-powered electricity generation networking power first as input quantity,
The parameter of PID regulator is adjusted；Then use wind-powered electricity generation networking power instantaneous value and network load instantaneous value as
Input quantity increases the time of integration of PID regulator at this time, obtains the first gas turbine power generation networking power by PID regulator
Reference target value；Then the predicted value of the predicted value and network load that use wind-powered electricity generation networking power increases at this time as input quantity
The derivative time of PID regulator obtains the second gas turbine power generation networking power reference target value by PID regulator；It uses
First gas turbine power generation networking power reference target value and the second gas turbine power generation networking power reference target value are added
Weight average obtains gas turbine power generation networking power target value.
In step D, according to the change curve of the efficiency of generator and revolving speed, gas turbine power generation networking power target is used
Revolving speed corresponding to value and actual speed determine revolving speed adjustment amount.
When acquiring the instantaneous value of network load, low-pass filtering is carried out to network load value signal.Power grid can be effectively reduced
Spike interference in load signal.
Referring to Fig. 2, the structure applied the present invention in electricity generation system include wind farm side wind power prediction device and
The generated output of wind farm side is sent to power divider, function by complementary power generation system gross output device, the two devices
Output end power described in gas turbine is sent to corresponding control system by rate distributor, and control system controls corresponding combustion gas
Turbine carries out power output, guarantees that network system runs smoothly.
In the description of the present invention, it is to be understood that, term " longitudinal direction ", " transverse direction ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown is merely for convenience of the description present invention, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (3)
1. a kind of combustion turbine power control system for general mood complementary system, it is characterised in that: including,
Wind-powered electricity generation networking power detection module (1), for being detected to wind-powered electricity generation networking power；
Network load detection module (2), for being detected to network load；
Gas turbine power generation networking power detection module (3), is detected for the generated output to gas turbine；
Analysis module (4) for analyzing the variation of prediction network load and networking power, and issues gas turbine rotary speed control and wants
It asks；
Gas turbine rotary speed control module (5), the gas turbine rotary speed control for being issued according to analysis module (4) are required to combustion
Gas-turbine revolving speed is controlled；
The control method of combustion turbine power control system for general mood complementary system, comprising the following steps:
A, wind-powered electricity generation networking power data is transferred to analysis module (4) by wind-powered electricity generation networking power detection module (1), analysis module (4)
Analysis record is carried out to the instantaneous value and desired value of wind-powered electricity generation networking power；
B, network load data are transferred to analysis module (4) by network load detection module (2), and analysis module (4) is negative to power grid
The instantaneous value and desired value of load carry out analysis record；
C, analysis module (4) is according to wind-powered electricity generation networking power data and network load data to gas turbine power generation networking power target
Value is determined；
D, analysis module determines that gas turbine rotary speed control requires, and be sent to combustion gas wheel according to the real-time revolving speed of gas turbine
Machine rotational speed control module (5)；Wherein, it according to the change curve of the efficiency of generator and revolving speed, is networked using gas turbine power generation
Revolving speed corresponding to power target value and actual speed determine revolving speed adjustment amount；.
E, gas turbine rotary speed control module (5) controls the revolving speed of gas turbine；
Wherein, in step C, use wind-powered electricity generation networking power data and network load data as input quantity, obtained using PID regulator
Gas turbine power generation networking power target value out；In step C, the history mean value and network load of wind-powered electricity generation networking power are used first
History mean value as input quantity, the parameter of PID regulator is adjusted；Then using wind-powered electricity generation networking power instantaneous value and
The instantaneous value of network load increases the time of integration of PID regulator at this time, obtains first by PID regulator as input quantity
Gas turbine power generation networking power reference target value；Then using the desired value of the desired value of wind-powered electricity generation networking power and network load
As input quantity, increase the derivative time of PID regulator at this time, show that the second gas turbine power generation networks by PID regulator
Power reference target value；Use the first gas turbine power generation networking power reference target value and the second gas turbine power generation networking function
Rate reference target value is weighted and averaged, and obtains gas turbine power generation networking power target value.
2. the control method of the combustion turbine power control system according to claim 1 for general mood complementary system,
Be characterized in that: in step A, analysis module (4) record wind-powered electricity generation networking power instantaneous value after, using wind-powered electricity generation networking power curve into
Row sectional linear fitting, using the derivative of the linear fit result of final stage as the variation tendency of wind-powered electricity generation networking power, then
The forecasted future value of wind-powered electricity generation networking power is calculated using the instantaneous value of wind-powered electricity generation networking power and the variation tendency of wind-powered electricity generation networking power,
Then it is weighted and averaged, is obtained most using the forecasted future value of the average value and wind-powered electricity generation networking power of wind-powered electricity generation networking power curve
Whole wind-powered electricity generation networking power desired value.
3. the control method of the combustion turbine power control system according to claim 2 for general mood complementary system,
It is characterized in that: negative according to the power grid in historical record at this time after analysis module (4) records the instantaneous value of network load in step B
The instantaneous value for carrying average value and network load is weighted and averaged, and obtains final network load desired value.
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| CN101078373A (en) * | 2007-07-05 | 2007-11-28 | 东北大学 | Combustion controlling device and controlling method for mini combustion turbine |
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| JP2011507465A (en) * | 2007-12-05 | 2011-03-03 | ソラレッジ テクノロジーズ リミテッド | Safety mechanism, wake-up method and shutdown method in distributed power installation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101078373A (en) * | 2007-07-05 | 2007-11-28 | 东北大学 | Combustion controlling device and controlling method for mini combustion turbine |
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| Title |
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| 风气互补发电系统的燃气轮机控制策略研究;曲晓荷;《中国优秀硕士学位论文全文数据库 工程科技II辑》;20170331;第19-20,29-30页 * |
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